Method of constructing bushing fixtures for metallic containers



Aug- 29, 1944. L. awAcKMAN 2,356,901

METHOD OF GONSTRUCTINGLv BVUSHING FIXTURES FOR METALLIC CONTAINERS Filed Aug. 50, 1940 15J/MM@ ya Patented Aug. 29, 1944 '1? 'UNITE;D s'mrtsil PATENT OFFICE METHOD OF CONSTRUCTING VBUSIIING H'FIXTURES FOR METALLIC CONTAINERS Louis B. vvackman, Richmond Heights, M0. Applicatio'mAugust 30, 1940, Serial No. 354,904

' 4 Claims. ci 2li- 1482) Thivsinvention'relates to a sealing ring for a bung orplug of Va sheet'metal container and disjcloses a'rnethod'of securing the sealing ring to fthev bushing" fixture of the plug for the application and use of asealing wire or the like. .""The primary object of the invention is toprovide a method of making the plug bushing fixture cfaconstruction for cooperation with the wire sealing ring for securing the ring to the bushing 'fixture-in an improved manner. NHAnother object'is to provide the outer surface of aV shape to engage and sustain the sealing ring `in position against removal from thexture i A further object is to provide the sealing ring "with: a flared wall for permanently `securing it to the fixture so as to form a part thereof.

A AA still Yfurther object is to outwardly flare an :annular wall of the sealing ring for securing it to, the fixture so that'it cannot be removed there- Another further object is to apply the sealing ring to the bushing xture during construction of the xture on a sheet metal wall of the container.

Still another object is to include the application of the sealing ring to the bushing fixture as a step in the assembly of the fixture.

With the foregoing and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts and in the details of construction hereinafter described-and claimed, it being understood that changes may be made within the scope of what is claimed without departing from the spirit of the invention.

An embodiment of the -invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a transverse vertical sectional elevation taken through a fragmentary portion of a sheet metal container wall and showing the invention applied thereto.

Figure 2 is a plan elevation of Fig. 1, taken approximately on the line 2-2 thereof and partly shown in section. i

Figure 3 is a plan elevation of the wire sealing ring.

Figure 4 is a transverse sectional elevation taken approximately on the line 4-4 of Fig. 3.

Figure 5 is a transverse vertical sectional elevation through the required parts of the bushing fixture during the construction thereof and including the wire sealing ring.

Figure 6 is a transverse vertical sectional elevation taken through the assembled parts of the bung fixture with the wire sealing ring secured in vposition against removal.

Referring by numerals to the accompanying drawing, the wall stock I is provided with an method Yshown and'described in U. S. Letters 'Patent No. 2,207,564, which issued to me July Thecollar I2 may be stamped or otherwise -formed from black steel or analogous material,

an'dwhile being circular in shape Yis provided 'with an inverted cone-shaped outer wall I3 and consequently is of less diameter across its inner end than at its outer end.

A wire sealing ring I4 having a vertically extending wall I5 and a horizontally extending wall I6 is held in secured position around the collar -I2,by the tapered surface of the outer wall I3 of the collar.

When the collar I2 has been mounted on thethreaded extending neck 8 and secured thereto and the wire sealing ring I4 has been mounted over the collar, the bushing or bung fixture I1 for the closure plug I8, has been provided on the wall 1 of a sheet metal container.

In assembling the bushing xture II with the Wire sealing ring I4 forming a part thereof, the ring I4 is mounted over the extending neck 9 of the wall 1 and is rpositioned with the horizontal wall I6 of the ring against the embossment 8 of the wall 1 for concentric engagement of the inner end I9 of the collar I2 so that said inner end of the collar which is smaller in diameter than the vertical annular wall I5 of the ring, can be engaged within the confines of the wall I5.

So that the inner end I9 of the collar I2 can be aptly entered within the wall I5 of the'ring I4, it is rounded or tapered as shown at 20 and by the use and application of the required means (not shown), the collar I2 is forced Within the annular wall I5 of the ring its entire length and the inner end I9 of the collar I2 will be engaged against the embossment 8 of the wall 1,- as shown in Figs. 5 and 6.

The forcing of the collar I2 within the Wall I5 of the ring I4 will nare said wall outwardly, as shown at 2I, and in conformity withthe inverted cone-shape of the outer wall I3 of the collar, and when the operation of flanging-over the extending end 22 of the neck 9 into the annular recessed seat 23 on the outer end of the collar I2, has been completed, the ring I4 cannot be removed from the collar and/or the bushing fixture I1, as shown in Fig. 6.

After the bung fixture I1 has been assembled as indicated with respect to the disclosure in Fig. 6, the threads I as shown in Fig. 1, are formed in the wall of the neck 9 by rolling and the like, as described in my Letters Patent No. 2,207,564.

The sealing ring I4 is provided with a pair of apertured ears 24 and the ange 25 of the plug I8 is provided with an apertured ear 26 and when the bushing xture I1 is closed by the threads of the plug I8 being screwed into the threads I0 of the xture for tightly seating the r gasket 21 on the outer end of the collar I2,`a

wire 28 of a sealing element 29 is engaged through an aperture of one of the ears 24 of the ring for sealing purposes and as indicated.

The flaring of the vertical wall I5 of the ring- I4 by the pressing of the collar I2 therein and the permanent securing of the collar onthe neck 9 may secure the ring from being turned on the collar, but in the event the ring did turn on the collar, the ring nevertheless will be secured against removal from the bushing ixturev and ring I4, provides for a simple and durable sealing ring which forms part of a bushing xture for a sheet metal container.

What I claim is:

l. The method of constructing a bushing iixture in a sheet metal wall for a container, con-` sisting of forming a neck around an opening in a wall of the container, mounting a wire seal ring over said neck, of engaging the small end of a. tapered collar over said neck and in said ring, of pressing the collar in said ring to abut the small end of the collar against the Wall and for outwardly flaring the ring, and of securing the neck to the collar- 2. The method of constructing a bushing xture in a sheet metal wall for a container, consisting of forming an. extending neck around an opening in a wall of the container, of mounting a vertical walled seal ring member over the neck,

of positioning an inverted cone-shaped collar and of flanging the free end of the neck over .the outer end `of the collar. I4 and the aperture of the ear 26 of the plug, l

3. Thev method of constructing a bushing xturein a sheet metal wall for a container, consisting of stamping an opening in the wall, of forming an outwardly extending neck from the surrounding material of the wall opening, ot loosely mounting a sealing ring over the neck, and of engaging the small end ofA a tapered collar between the neck and the ring and pressing the collar therebetween to engage its small end against the wall and to ilare the ring, and of anging the free end of the neck over the collar tosecure the collar and the ring.

4. The method of constructing a bushing fixture in a sheet metal wall for a container, consisting of stamping an opening in the Wall, of

-forming an outwardly extending neck from the surrounding material of the wall opening, of loosely mounting a sealing ring over the neck, of engaging the small end of a tapered collar between the neck and the ring and pressing the collar therebetween to engage its small end against.` the wall, and of flanging the free end of the neck over the outer end of the collar.

LOUIS B. WACKMAN. 

